单项选择题

The invitation is______a friendship step.

A. of itself
B. in itself
C. itself
D. to itself
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单项选择题
Remember to ask for a______after you pay the money.
A. reception
B. receipt
C. note
D. bill
单项选择题
Do you think______tests really measure how well our kids perform in school and life
A. normalized
B. modernized
C. mechanized
D. standardized
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